Nailing-machine



(No Model.) 4 Sheets-Sheet 1.

J. HYS'LOP. Jr. NAILING MACHINE.

No'. 429,528. Patented June 3, 1890.

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(No Model.) 4 Sheets-Sheet 2.

J. HYSL'OP; Jr. NAILING MACHINE.

N0. 429,528. Patented June 3,1890.

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I (No Model.-)' 4 Shets-Sheet 3.

J. HYSLOP,-Jr. NAILING MAOHINE.

No. 429,528. v Patented June 3, 1890.

bined with two nail chutes or tracks con- UNITED STATES PATENT OFFICE...

JOHN HYSLOP, JR.-, or ABINGTON, MASSACHUSETTS. f

NAILINGMACHINE.

SPECIFICATION forming part of Letters Patent No. 429,528, dated June 3, 1890.

Application filed July 10, V1889.

To all whom it may concern.- v

Be it known that 1, JOHN HYSLOP, J r., a citizen of the United States, residing at Abing: ton, in the county of Plymouth and State of Massachusetts, have invented certain In1 provements in Nailing-lVIa-chines, of which the following is a full, clear, and exact description, reference being had to the accompany ing drawings, making part of thisspecification, in which Figure 1 is a side elevation of a nailing-machine embodying myinvention, one of the two nail-reservoirs being omitted. Fig. 2 is afront elevation of the same with the front plate removed. Fig. 3 is a plan of the same. Fig. 4 is an elevation of aportion of the front of the machine. Fig.5 is a horizontal section of the nail-carrying cylinder on the line 00 w of Fig. 2. Fig. 6 is a longitudinal vertical section of the machine. Fig. 7 is a vertical section on the line 1 y of Fig. 3. Fig. Sis a plan of the nail-carrying cylinder and the lower portions of the two chutes which co-operate therewith. Fig. 9 is a sectional elevation of the nail-carrying cylinder and a portion of its operating mechanism on the line 22 of Fig. 8. I Fig. 10 is a sectional detail of the lower portion of one of the nail-feeding chutes and the nail-carrying cylinder. My invention has for its object to produce a nailing-machine in which nails of two kinds, sizes, or shapes, or composed of two different substances, can be alternately driven into the stock, whereby novel and ornamental effects hitherto unattainable in machines of this character can be produced without any adj ustment or changing of the parts of the machine during the operation.

To this end my invention consists in anailing-machine provided with two separate and independent nail-reservoirs adapted to contain two different kinds or sizes of nails,com-

nected with said reservoirs and adapted to automatically feed therefrom two different kinds or sizes of nails, said nails being taken alter-1 nately', first a single nail of one kind from one reservoir and chute and then a single nail of another kind from the other reservoir and chute, and transferred to a position beneath the nail-driver, by which they are sub- Serial No. 317,034. (No model.)

sequently driven into the stock, as hereinafter set forth.

My invention also consists in certain novel combinations of mechanical devices and details of construction, as hereinafter set forth and specifically claimed. 7

In the said drawings, A represents the frame-worker head of the machine, which is of suitable shape to support the working parts andi's mounted, as usual, on a post or standard B, the upper portion only of which is shown.

C is the main or driving shaft, which revolves in suitable bearings and carries the driving-pulley D and loose pulley E, the drivin g-pulleyhavingsecuredto it a balance-wheel G, and both being adapted to turn loosely upon the shaft 0, except when connected therewith by a clutch mechanism, which is operated when the machine is to be started or stopped by means of a rod 1) and treadle (not shown) in a well-known manner. The shaft 0 has secured to its front end a lifting-cam c of such shape as to lift the driver-bar H and at the proper time release the same to permit it to be thrown down quickly by its spring I, the nail-driver d, attached to the said driverbar, acting at such'time to drive the nail, as hereinafter described.

K is the work supportin g horn or rest, which is removably secured to the upper end of a verticalrod e, sliding in guides in the standard B and surrounded by a spiral spring f, which presses the work up against the feedroll, to be hereinafter described, said rod being adapted to be depressed in a well-known manner against the resistance of the spring f by means of a treadle. (Not shown.)

L L represent a pair of nail-receivin g drums or reservoirs, which are arranged on opposite sides of the machine, and with these reservoirs are connected two nail chutes or tracks N N, which are inclined downward and toward each other, as seen in Figs. 2, 3, and 8. Eachof these reservoirs is open on one side to receive the nails and is supported and rotated upon a stud projecting from an arm bolted to the frame A. The two reservoirs may be supplied with nails of two different kinds, sizes, or shapes, or composed of two different substances, so that a different kind of nail will be fed from each chute, or the two reservoirs may be both supplied with the same kind of nails when the machine is to be used for ordinary work.

Against the open side of each reservoir L is placed a stationary concavo-convex apron M, which extends up to about the center of the said drum, leaving the upper half open on that side to allow of the introduction of the nails.

\Vithin each drum, around its inner periphery, are arranged a series of buckets h, Fig. 2, which pick up the nails in small quan tities as the drum revolves and drop them onto the upper end of the inclined chute or track N, which passes through the apron M into a position to receive the nails. These drums are each provided on one side with a ratchet-wheel i, Fig. 7, with which engages a pawl 7a on a lever I, both levers Z I being actuated by the same cam on on the main shaft against the resistance of springs 0 0, whereby the nail drums or reservoirs are rotated intermittingly as desired.

The inclined chutes or tracks N N are each composed of two parallel bars set at such distance apart as to leave a space or raceway 1) between them for the reception of the shanks of the nails, the heads of which rest upon and are supported by the upper edges of the raceway, as seen in Fig. 10, by which they are guided as they slide down to the lower end thereof, and these chutes N N are each provided with suitable devices for insuring the proper delivery of the nails thereto and their passage down the same in a correct position, and also for preventing the nails from becoming clogged or obstructed in their passage through the same.

The nail-feeding chutes and devices connected therewith, together with the nail-receiving drums and their operative mechanism, are substantially the same in construction and mode of operation as similar parts shown and particularly described in another application for Letters Patent filed by me in the United States Patent Office July 10, 1889, Serial No. 317,033, and, as they form no part of this invention, will not be herein further described. Nail chutes or tracks of any other suitable construction may, however, be employed, if preferred.

The nails are taken alternately from the lower ends of the two chutes N N and transferred to a position beneath the nail-driver by a suitable transferring device or mechanism. Onc device or mechanism which I have found to answer well for this purpose will now be described; but other devices or mechanism for alternately transferring the nails from the two chutes toa position beneath the nail-driver may be employed without departing from the spirit of my invention.

P is a reciprocating or oscillating cylinder, which is supported upon a vertical stud q, screwed at its upper end into the frame A, as seen inFig. b. This cylinder is provided at its periphery with two vertical grooves, in each of which are pivoted a pair of levers '1', of the form seen in Figs. 9 and 10, which are pressed forward, so that their lower ends touch each other, by flat springs s, placed behind them, as seen in Fig. 9, these levers being properly centered by the contact of their upper ends with the sides or walls of the grooves in which they are pivoted. The two opposite surfaces of each pair of levers r form a nail-receiving channel t, within which the nail drops, and by which it is caught and held, so that its point will not project below the bottom of the cylinder. These levers also cause the nails to be properly centered over the work when carried by the oscillations of the cylinder P beneath the nail-driver, which latter, as it descends into the nail-channel t beneath it, forces the nail therein down between the lower ends of the levers 0*, which are thus separated against the resistance of their springs s to allow of the passage of the nail into the stock on the work-supporting horn or rest beneath, the levers being closed together or returned to their normal positions by the said springs on the ascent of the naildrivcr. The nail-receiving channels t are of rectangular form in horizontal section, with the longer dimension pointing radially toward the center of the cylinder, which enables them to receive and hold nails having rectangular heads, which are thus prevented from turning in the said channels, the levers 0' being provided at their lower ends with elliptical cavities, into which the flat point of the nail settles, causing the point of the nail to lie directly under the head, which insures the nail being driven into the material perfectly straight.

Around the lower half of the cylinder P is immovably secured a tightly-fitting collar or sleeve 1), which serves to cover the nailchannels 1% and confine the nails therein. This collar is provided on its exterior surface with two notches or cavities 0, Figs. 2 and 5, one for each nail-channel t, these notches being engaged by a spring-catch (1', which thus locks and holds the cylinder P at the termination of each movement immovably in its proper position, with one of its nail-channels directly beneath the nail-driver, so that it cannot turn in either direction while the nail is being driven, the cylinder when in this position having its other nail channel in line with the chute from which itis supplied with nails, whereby a nail is taken from each one of the chutes at the same time that the nail previously taken from the other chute is being driven into the stock by the nail-driver. The spring-catch cl is disengaged from the notch c at the proper time to permit the cylindcr to be oscillated in the opposite direction by an arm 6, connected with alever 28, which is operated by a cam or projection f on the main shaft, against which it is constantly held by the pressure of the spring-catch d on the arm 6'.

- which a nail has just been deposited from the will cover that portion of the nail-channel over.

The cylinder P is oscillated or reciprocated at the proper times to bring its two nailchannels t t alternately opposite to their respective chutes N N, whereby a nailis taken alternately from each chute and transferred to a position beneath the nail-driver, which then descends and drives the nail into the stock. On the ascent of the nail-driver the cylinder P is oscillated in the opposite direction,

which brings the empty nail-channel last beneath the nail-driver opposite to the end of its chute N to receive another nail, which movement brings the other nail-channel, into chute which co-operates therewith, beneath the nail-driver to be driven in the same manner as the previous one, and in this manner nails of two diiferent kinds, sizes, or shapes, or composed of two different substances, can be alternately driven into the stock to produce novel and ornamental efiects, each of the nailreservoirs being supplied with the particular description of nails desired.

To the top of the cylinder P is secured a cap g, which is provided at its periphery with two radial slots h, corresponding to the nail-channels t and placed immediately there- The outer portions of these slots h are of such size as to admit the shank of a nail, but not the head, which rests on the edges of this portion of the slot, while the inner por tion of the slot is enlarged and is of such size and shape as to allow the nail to drop through it into the nail-.channelt beneath, and also permit of the passage of the naildriver, which passes through the said enlarged portion of the slot. lower end of its chute N, it is caught and held by an adjustable stop 71 which is secured to the end of the chute and extends beyond the same over the nail-cylinder, as seen in Fig. 10, justfar enough to allow the lowermost nail in the chute to slide into the narrow portion of the slot 7t opposite thereto,

but no farther, whereby the entrance of more than one nail at a time into the slot is prevented and the clogging of the nail-channels thus avoided, and as the cylinder is oscillated the projecting head of the nail is carried into an eccentric or cam-groove k, Figs. 8 and 9, formed in the under side of a guide-piece 1, adj ustably secured to a guard 30, attached to the lower end of the chute. The form of the cam-groove is such that as the nail-head is carried through it by the oscillation of the cylinder P it will be pushed inward toward the center of the cap g until it reaches the enlarged portion of the slot h, through which it will then drop into the nail-channel t beneath, to be caught by the centering and holding levers/r. The cap 9' is made adjustable and removable from the cylinder P, so

that it can be replaced by others having slots h of different sizes or shapes for nails of different kinds. The lower end .of the guard 30 extends downward, and is so placed that it As each nail drops to the which lies between the cap g and the collar 1) at the time that the nail is passing down through the cap into the said nail-channel, whereby the nail is guided safely into the lower portion of the nail-channel surrounded by the collar b The .nail holding and centering levers r of the nail-carrying cylinder, the radial slots h in its cap g, the collar or sleeve 1), which encircles the lower portion of the cylinder, as also the spring-catch d, for holding said cylinder in position after each movement, the guide-pieces Z, with their cam-grooves k, for pushing the nails from the narrow into the enlarged portions of the slots h in the cap g, the stops 2" at the lower ends of the chutes N N, for catching and holding the lowermost nails in each of the chutes, and the guards 30, which cover the open portions of the nailchannels, are all substantially the same in construction and mode of operation as similar parts shown and described in my aforesaid application for Letters Patent of the United States, filed July 10, 1889, Serial No. 317,033, and form no part of this invention.

The nail-carrying cylinder P is oscillated a distance equal to that between its two nailchannels 25 in the following manner: The upper or smaller portion of the cylinder Pis encircled by a collar 07., secured immovably thereto, and provided with an arm p, to which is pivoted a horizontal rod g, which passes through an aperture at the lower end of a lever Q,fulcrumed at 31 to the frame A and provided with a longitudinal slot 1", Figs. 2 and 4, in which works a crank-pin .9, projecting from the face of a gear R, which meshes. with and is rotated .by a smaller gear 25' on the -main shaft 0, the relative sizes of the gears R 25' being such that a single revolution ofthe scribed, produce a vibration of the lever Q in one direction only. On opposite sides of the lower end of the lever Q the rod q is encircled by two stiif spiral springs u v, the outer spring a being kept in place by nuts 32 at the end of the rod q, and thus as the lever Q is vibrated in either direction by the rotation of the gear R its motion is communicated through one of the springs u or 12, on which it presses, to the rod q and arm 1), thus moving the nail-carrying cylinder, the springs to Q2 being sufiiciently stilf to perform this function without yielding. If, however, the nail-carrying cylinder should become obstructed by an imperfect nail or from-any cause be prevented from revolving, the lever Q, on being vibrated, will slide over the rod 'but I prefer a yielding connection, for the reasons above stated.

' adjusted to bring its nail-receiving channels driver after each movement of the cylinder,

and the chutes or tracks N N are also made adjustable on the frame-work A by means of screws and slots, so that they can be brought exactly into a proper operative position with regard to their respectivenail-channels in the nail-carryingcylinder after the latter hasbeen exactly into line with the nail-driver, as before described.

The feeding device by which the stock, after each nail has been driven, is moved into the proper position for the next nail will now be described.

At the lower end of a plate T, secured to the front plate U of the machine, is formed a bearing for the support of a serrated or roughened feed-roll f which is adapted to bear upon the stock outside the nail-driver, and to this feed-roll is immovably secured a ratchet-wheel the said feed-roll and ratchetwheel being held in place within the bearing at the bottom of the plate T by a bolt 7L having a nut 2' and check-nut k The ratchetwheel g is intermittingly rotated by a pawl Z at the lower end of a bar 121*, the upper end of which is pivoted to a block of, which slides in a vertical slot 19 in the front plate U and projects inward, so as to lie in the path of a lug or projection 4' Fig. 2, on the driver-bar H, the parts being so arranged that as the driver-bar is raised by its cam the projection 0' thereon will impinge on the block a and raise the bar m against the resistance of a spring, (not shown,) causing the pawl Z to turn the ratchet-Wheel and feed-wheel a sufficient distance to produce the desired amount of feed of the stock held between said feedwheel and the work-supporting horn or rest by the upward pressure of the spring f, the stock being guided, as usual, by the hand of the operator and held against an adjustable gage-wheel 34:, which is mounted on a supporting-arm 35 and regulates the distance of the nails from the edge of the work.

To the upper end of the work-supporting horn K is secured a beveled roll .9 which retates on a pin projecting from the horn at an angle of forty-five degrees, which causes the beveled face of the roll to lie in a horizontal plane, the roll forming asupport for the stock outside the line in which the nails are being driven. On the inner side of the roll 5 is placed a vertical work supporting roll 1?, which revolves on a horizontal stud projecting from an L-shaped piece 10 which is made adjustable horizontally by means of a slot and screw upon the work-supporting horn K, and when the nails are to be driven into the stock without cinching the roll t is adjusted so as to leave a space or channel between it and the beveled roll 3 as seen in Figs, 1 and 6, into which the points of the nails enter. When, however, it is desired to clinch the nails, the roll 25 is adj ustcd to bring it up close against the beveled or outside roll 3 whereby a solid anvil is formed, against which the point of the nail is driven to clinch it. These Work-supporting rests or rolls are fully described and claimed in my aforesaid application for Letters Patent of the United States, filed July 10, 1889, Serial No. 317,033, and, as they form no part of this invention, will not be herein further described. I do not,however,limitmyselfto the employment of awork-supporting horn constructed as above described, as any other suitable or well-known work-supporting horn or rest can be used instead, if desired, and it is obvious that the principal feature of my invention, which consists in the employment of two nail-feeding chutes, from which the nails are alternately taken and transferred to a position beneath the nail-driver, may be applied to nailingmachines of various constructions, if desired, thereby enabling such machines to alternately drive two diiferent kinds of nails without changing or adjusting any of the mechanism or stopping the machine-a desideratum hitherto unattained in any nailingmachine with which I am acquainted.

I am aware that nailing-machines have been provided with two or more receptacles for containing nails of different lengths or kinds, which are delivered therefrom by suitable mechanism to the point where they are driven, said mechanism being capable ofadjustment at the will of the operator, so that nails can be delivered from either receptacle, as may be desired. To such construction I make no broad claim, as my invention differs entirely therefrom, inasmuch as in my machine the nails are taken automatically from two separate receptacles, each provided with a chute or track, first a single nail of one kind from one chute or track and then a single nail of another kind from the other chute or track, and transferred to a position beneath the nail-driver, which cannot be accomplished in any of the machines heretofore constructed in which different kinds of nails are taken from two or more receptacles,.as in such machines one kind of nail is fed continuously until the operator adjusts the machine to cause another kind of nail to be fed to the dc sired point.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a nailing-machine, a nail-driver, two separate and independent nail reservoirs adapted to contain two diiferent kinds or sizes of nails, two stationary nail-feeding chutes or tracks connected with said reservoirs, a reciprocating or oscillating nail-carrier provided with nail receiving and holding grooves or channels and adapted to automatically take the nails alternately, first a single nail of one kind from one reservoir and chute and then a single nail of another kind from the other reservoir and chute, and transfer the same to a position beneath the nail-driver, and mechanism for automatically reciprocating or oscillating the nail-carrier, substantially as described.

2. In a nailing-machine, the combination, With a nail-d river, and a work-suppo'rtin g horn or rest, and a feeding device for the stock, of twoseparate and independent nail-reservoirs adapted to contain two different kinds or sizes of nails, two stationary nail-feeding chutes or tracks connected with said reservoirs, a reciprocating or oscillating nail-carrier provided with nail receiving and holding grooves or channels and adapted to automatically take the nails alternately, first a single nail of one kind from one reservoir and chute and then a single nail of another kind from the other reservoir and chute, and transfer the same to a position beneath the nail-driver, and mech anism for automatically reciprocating or oscillating the nail-carrier, substantially as described.

vided at its periphery with two nail receiving and holding grooves or channels which are alternately brought by the oscillations of the cylinder automatically into line, first with one chute and thenvwith the other, whereby the nails are automatically taken alternately, first a single nail of one kind'froin one chute and then a single nail of another kind from the other chute, and carried to a position beneath the nail-driver, substantially as described.

4. In a nailing-machine, the combination, with the oscillating nail-carrying cylinder P, the vibrating lever Q, and means to operate the same, of a double yielding connection between said lever Q and the cylinder P, consisting of the rod q, pivoted to the arm p and passing through an aperture in the lower end of the lever Q, and the springs u 1;, encircling said rod qon opposite sides of the lever Q, whereby said lever is permitted to move in either direction withoutactuating the cylinder P in case the latter should become obstructed, substantially as described.

\Vitness my hand this 3d day of July, A. D. 1889.

JOHN HYSLOP, JR.

In presence of-.

P. E. TESCHEMAOHER, HARRY W. AIKEN. 

